1)С+2H2=CH4

2CH4=C2H2+3H2

C2H2+HCl=C2H3Cl

nH2C=CHCl = (-H2C-CH-)n

                                    I

                                   Cl

2)CH3-CH2-CH2-CH3 = CH3-CH-CH3

                                                           I

                                                        CH3

CH3-CH-CH3 +Cl2= CH3-CCl-CH3

             I                                    I

          CH3                             CH3

C4H10= C2H4+C2H6-крекинг.

C2H4+HOH=C2H5OH